JZA80 Toyota Supra – JUN Auto – Import Tuner Magazine Page 2

28 Feb 2015 | Author: | No comments yet »
Toyota Supra II

From top speed to time-attack, will this monster Supra be reborn a champion?

Outside, the Supra wears the same front bumper JUN originally developed for its initial debut, which shares nothing with the long-nose aero used at Bonneville. Its current piece was designed to direct as much incoming air as possible to its intercooler, custom radiator, and Trust 16-row oil coolers; the Bonneville piece, for the exact opposite reason. To help generate downforce at the front, JUN has added a series of dry carbon canards along with a front lip splitter. And those FRP fender vents are fully functional, helping to rid the engine bay of hot air. The original vented hood is still used for the same reason, easily recognizable with its turbo-clearing driver-side bulge. Fuji Mspec dry carbon doors and a rear hatch serve to further lighten the car, though you might miss them thanks to their meticulous Japanese construction. Active side skirts help give a more aggressive stance and limit airflow entering the car from its sides, but it’s the rear additions that really set the car off, starting with the massive Sard adjustable carbon GT-wing sitting high on billet stays, and continuing on down to the carbon rear diffuser and vortex generators borrowed from RE-Amemiya. The Supra sits on 18-inch Yokohama Advan RG wheels at the front, and RGIIs at the rear, all wrapped in sticky M-compound Advan A050 semi-slicks, sized at 265/35/18. To give a more modern feel to the car, JUN has stepped away from its usual yellow and green livery in favor of metallic sand-grey hues, topped off with orange graphics.

Behind The Build

JZA80 Toyota Supra

Output: 800 hp @ 6,900 rpm / 644 lb/ft of torque @ 6,000 rpm

Engine JUN 3,210cc stroker kit: (87mm forged pistons, I-beam connecting rods, 90mm counter-balanced crankshaft), 292-degree/10.8mm lift exhaust camshaft, adjustable cam gear, head studs, stainless steel turbo manifold, intercooler piping, titanium turbo-back exhaust piping, muffler, intake manifold, custom fuel collector tank, racing radiator, electric fans; 3SGTE valve springs, inner shims; RB26DETT valve lifters; Trust T88-34D turbocharger, 2mm metal head gasket, Type-R wastegate, Airinx intake filter, four-row intercooler, 16-row oil cooler; Sard twin catalysts, 1,000cc/min injectors (x6); Nissan VH45 mechanical throttle body


Driveline Holinger six-speed sequential transmission; HKS GD Pro triple-plate clutch; TRD LSD

Toyota Supra II

Suspension Zeal Super Function adjustable coilovers, 25kg/mm front springs, 21kg/mm rear springs; custom Ikeya Formula adjustable control arms/links; Trust front and rear strut tower bars; JUN anti-roll bars

Wheels/Tires Advan RG wheels (18×9.5 front, 18×10.5 rear); Yokohama Advan A050 tires (265/35-18 front and rear)

Brakes Grex 355mm two-piece slotted rotors (front and rear); Alcon four-piston calipers (front and rear); Endless MA22B brake pads (front and rear)

Exterior JUN front bumper, front fenders, side skirts, rear splash skirts, aero hood, carbon fiber rear diffuser, front canards, roof fins, aero mirrors, graphics; Fuji Mspec carbon fiber doors, hatch; Sard GT carbon fiber rear wing

Interior JUN fully spot-welded monocoque, gusseted roll cage, rigid rear suspension member, boost gauge, dash panel, switch panel; Recaro SPG racing bucket seat; Takata harness; Nardi steering wheel; Greddy gauges (oil pressure, exhaust temperature, boost, fuel pressure), Profec B Spec-2 boost controller; Billion variable radiator fan controller

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